Rufus by Carole Mortimer

Rufus Wynter is determined to find the person who stole his daughter from him two decades ago.
By a miracle she’s back in his life now, but someone needs to explain, and pay, for his having missed the first twenty years of his daughter’s life.
Which means he doesn’t have time to suddenly find himself attracted to the young and beautiful Molly Harper when she comes to the offices of Wynter Security to ask for help tracking down her missing brother.
Molly hadn’t expected Rufus Wynter to be quite so handsome, such a complete silver fox, at only forty-three, that it makes her toes curl just to look at him.
But Molly has a secret.
A secret so terrible she knows Rufus will hate her if he ever learns the truth.